Similarly there is another tension related to the measured value of \(S_8\equiv \sigma _8(\Omega _m/0.3)^{0.5}\) , where \(\sigma _8\)  is the root mean square of matter fluctuations on a 8 \(h^{-1}\) Mpc scale,
and \(\Omega _m\)  is the total matter abundance. The latest prediction from Planck CMB data within the \(\Lambda \) CDM framework is \(S_8=0.832 \pm 0.013\)  [1]}.
